1 /* 2 * Copyright (c) 2024 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef AUDIO_BUFFER_CACHE_H 17 #define AUDIO_BUFFER_CACHE_H 18 19 #include <list> 20 #include <map> 21 #include <string> 22 #include <mutex> 23 #include <condition_variable> 24 25 #include "dump_buffer_wrap.h" 26 27 namespace OHOS { 28 namespace Media { 29 namespace MediaMonitor { 30 31 using AudioBuffer = DumpBuffer; 32 using AudioBufferElement = struct AudioBufferElement { 33 int32_t size {0}; 34 std::shared_ptr<AudioBuffer> buffer {nullptr}; 35 }; 36 37 class AudioBufferCache { 38 public: 39 AudioBufferCache(std::shared_ptr<DumpBufferWrap> wrap); 40 ~AudioBufferCache(); 41 int32_t RequestBuffer(std::shared_ptr<AudioBuffer> &buffer, int32_t size); 42 int32_t ReleaseBuffer(std::shared_ptr<AudioBuffer> &buffer); 43 int32_t Clear(); 44 int32_t GetBufferById(std::shared_ptr<AudioBuffer> &buffer, uint64_t bufferId); 45 int32_t SetBufferSize(std::shared_ptr<AudioBuffer> &buffer, int32_t size); 46 private: 47 int32_t RequestCacheBuffer(std::shared_ptr<AudioBuffer> &buffer, int32_t size); 48 int32_t AllocAudioBuffer(std::shared_ptr<AudioBuffer> &buffer, int32_t size); 49 int32_t DeleteAudioBuffer(uint64_t bufferId, int32_t size); 50 int32_t AllocBuffer(std::shared_ptr<AudioBuffer> &buffer, int32_t size); 51 std::mutex mutex_; 52 std::list<uint64_t> freeBufferList_; 53 std::map<uint64_t, AudioBufferElement> bufferMap_; 54 int32_t bufferSize_ = 0; 55 std::shared_ptr<DumpBufferWrap> dumpBufferWrap_ = nullptr; 56 }; 57 58 } // namespace MediaMonitor 59 } // namespace Media 60 } // namespace OHOS 61 #endif // AUDIO_BUFFER_CACHE_H